scope:

This publication serves as a reference for the selection, design, installation, operation, and maintenance of single phase liquid mass measurement systems which operate in the 300 to 700 kghn³ (0.3 to 0.7 gmlcc) density range.

Liquids with density below 300 and above 700 kg/m³ (below 0.3 and above 0.7 g d c c ) and cryogenic fluids are excluded from the scope of this document.

NGL Product should be analyzed to determine the mixture composition. These data should be considered in making a determination of the measurement methods and equipment to be used.

Sampling equipment and techniques are covered including standards for analytical methods used to determine the composition of the sampled product. Equations of state and correlations used to calculate the density of the product are discussed. The publication used to convert mass to equivalent liquid volumes of components is also discussed.

Equipment exists which uses diverse principles for measuring volume, sampling the product, and determining the composition and density of the product. This publication does not advocate the preferential use of any particular type of equipment. It is not the intention of this publication to resûicf future development or improvement of equipment. The contracting parties to any agreement should mutually agree on the equipment to be used.